Home / 786,985.20-1,086,007.50-464,799.60

Finding the Fourth Proportional to 786,985.20, 1,086,007.50 and 464,799.60

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Solution

The fourth proportional to 786,985.20, 1,086,007.50 and 464,799.60 is: 641,404.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,985.20 : 1,086,007.50 = 464,799.60 : x
  2. Step 2: Convert to fraction form
    786,985.20/1,086,007.50 = 464,799.60/x
  3. Step 3: Cross multiply
    786,985.20x = 1,086,007.50 × 464,799.60
  4. Step 4: Simplify right side
    786,985.20x = 504,775,851,597
  5. Step 5: Solve for x
    x = 504,775,851,597/786,985.20
  6. Step 6: Final answer
    x = 641,404.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.